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Unterweger H, Dézsi L, Matuszak J, Janko C, Poettler M, Jordan J, Bäuerle T, Szebeni J, Fey T, Boccaccini AR, Alexiou C, Cicha I. Dextran-coated superparamagnetic iron oxide nanoparticles for magnetic resonance imaging: evaluation of size-dependent imaging properties, storage stability and safety. Int J Nanomedicine 2018; 13:1899-1915. [PMID: 29636608 PMCID: PMC5880571 DOI: 10.2147/ijn.s156528] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Rising criticism of currently available contrast agents for magnetic resonance imaging, either due to their side effects or limited possibilities in terms of functional imaging, evoked the need for safer and more versatile agents. We previously demonstrated the suitability of novel dextran-coated superparamagnetic iron oxide nanoparticles (SPIONDex) for biomedical applications in terms of safety and biocompatibility. METHODS In the present study, we investigated the size-dependent cross-linking process of these particles as well as the size dependency of their imaging properties. For the latter purpose, we adopted a simple and easy-to-perform experiment to estimate the relaxivity of the particles. Furthermore, we performed an extensive analysis of the particles' storage stability under different temperature conditions, showing their superb stability and the lack of any signs of agglomeration or sedimentation during a 12 week period. RESULTS Independent of their size, SPIONDex displayed no irritation potential in a chick chorioallantoic membrane assay. Cell uptake studies of ultra-small (30 nm) SPIONDex confirmed their internalization by macrophages, but not by non-phagocytic cells. Additionally, complement activation-related pseudoallergy (CARPA) experiments in pigs treated with ultra-small SPIONDex indicated the absence of hypersensitivity reactions. CONCLUSION These results emphasize the exceptional safety of SPIONDex, setting them apart from the existing SPION-based contrast agents and making them a very promising candidate for further clinical development.
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Affiliation(s)
- Harald Unterweger
- ENT Department, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - László Dézsi
- Nanomedicine Research and Education Center, Institute of Pathophysiology, Semmelweis University, Budapest, Hungary
- SeroScience Ltd., Budapest, Hungary
| | - Jasmin Matuszak
- ENT Department, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Christina Janko
- ENT Department, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Marina Poettler
- ENT Department, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jutta Jordan
- Institute of Radiology, Preclinical Imaging Platform Erlangen, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Tobias Bäuerle
- Institute of Radiology, Preclinical Imaging Platform Erlangen, Universitätsklinikum Erlangen, Erlangen, Germany
| | - János Szebeni
- Nanomedicine Research and Education Center, Institute of Pathophysiology, Semmelweis University, Budapest, Hungary
- SeroScience Ltd., Budapest, Hungary
| | - Tobias Fey
- Institute of Glass and Ceramics, Department of Materials Science and Engineering, University Erlangen-Nuremberg, Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University Erlangen-Nuremberg, Erlangen, Germany
| | - Christoph Alexiou
- ENT Department, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Iwona Cicha
- ENT Department, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung Professorship, Universitätsklinikum Erlangen, Erlangen, Germany
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Jager NM, Poppelaars F, Daha MR, Seelen MA. Complement in renal transplantation: The road to translation. Mol Immunol 2017; 89:22-35. [PMID: 28558950 DOI: 10.1016/j.molimm.2017.05.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 05/17/2017] [Accepted: 05/19/2017] [Indexed: 02/08/2023]
Abstract
Renal transplantation is the treatment of choice for patients with end-stage renal disease. The vital role of the complement system in renal transplantation is widely recognized. This review discusses the role of complement in the different phases of renal transplantation: in the donor, during preservation, in reperfusion and at the time of rejection. Here we examine the current literature to determine the importance of both local and systemic complement production and how complement activation contributes to the pathogenesis of renal transplant injury. In addition, we dissect the complement pathways involved in the different phases of renal transplantation. We also review the therapeutic strategies that have been tested to inhibit complement during the kidney transplantation. Several clinical trials are currently underway to evaluate the therapeutic potential of complement inhibition for the treatment of brain death-induced renal injury, renal ischemia-reperfusion injury and acute rejection. We conclude that it is expected that in the near future, complement-targeted therapeutics will be used clinically in renal transplantation. This will hopefully result in improved renal graft function and increased graft survival.
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Affiliation(s)
- Neeltina M Jager
- Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Felix Poppelaars
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Mohamed R Daha
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Nephrology, Leiden University Medical Center, University of Leiden, Leiden, The Netherlands
| | - Marc A Seelen
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Arima Y, Toda M, Iwata H. Surface plasmon resonance in monitoring of complement activation on biomaterials. Adv Drug Deliv Rev 2011; 63:988-99. [PMID: 21803085 DOI: 10.1016/j.addr.2011.06.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 06/20/2011] [Accepted: 06/22/2011] [Indexed: 12/12/2022]
Abstract
When artificial materials come into contact with blood, various biological responses are induced. For successful development of biomaterials used in biomedical devices that will be exposed to blood, understanding and control of these interactions are essential. Surface plasmon resonance (SPR) spectroscopy is one of the surface-sensitive optical methods to monitor biological interactions. SPR enables real-time and in situ analysis of interfacial events associated with biomaterials research. In this review, we describe an SPR biosensor and its application to monitor complement activation onto biomaterials surface. We also discuss the effect of surface properties of the material on complement activation.
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Affiliation(s)
- Yusuke Arima
- Institute for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606–8507, Japan
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4
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Effect of swelling of poly(vinyl alcohol) layers on complement activation. Biomaterials 2010; 31:6926-33. [DOI: 10.1016/j.biomaterials.2010.05.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Accepted: 05/23/2010] [Indexed: 11/19/2022]
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Arima Y, Kawagoe M, Toda M, Iwata H. Complement activation by polymers carrying hydroxyl groups. ACS APPLIED MATERIALS & INTERFACES 2009; 1:2400-2407. [PMID: 20355878 DOI: 10.1021/am9005463] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Hydrogels of polymers carrying surface hydroxyl groups strongly activate the complement system through the alternative pathway, although it has also been reported that solutions of polymers do not. To address these curious, inconsistent results, we examined the effect of polymer states, either immobilized on a surface or soluble in serum, on the complement activation using a surface plasmon resonance apparatus and enzyme-linked immunosorbent assay. We clearly showed that dextran- and poly(vinyl alcohol)-immobilized surfaces strongly activated the complement system but that soluble polymers could not, even when the amounts of the soluble polymers added to serum were 4-2000 times higher than those on the polymer-immobilized surfaces.
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Affiliation(s)
- Yusuke Arima
- Institute for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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Vonarbourg A, Passirani C, Saulnier P, Benoit JP. Parameters influencing the stealthiness of colloidal drug delivery systems. Biomaterials 2006; 27:4356-73. [PMID: 16650890 DOI: 10.1016/j.biomaterials.2006.03.039] [Citation(s) in RCA: 509] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2006] [Accepted: 03/24/2006] [Indexed: 10/24/2022]
Abstract
Over the last few decades, colloidal drug delivery systems (CDDS) such as nano-structures have been developed in order to improve the efficiency and the specificity of drug action. Their small size permits them to be injected intravenously in order to reach target tissues. However, it is known that they can be rapidly removed from blood circulation by the immune system. CDDS are removed via the complement system and via the cells of the mononuclear phagocyte system (MPS), after their recognition by opsonins and/or receptors present at the cell surface. This recognition is dependent on the physicochemical characteristics of the CDDS. In this study, we will focus on parameters influencing the interactions of opsonins and the macrophage plasma membrane with the surface of CDDS, whereby parameters of the polymer coating become necessary to provide good protection.
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Affiliation(s)
- Arnaud Vonarbourg
- INSERM U646, Ingénierie de la Vectorisation Particulaire, Université d'Angers, Immeuble IBT, 10, rue André Boquel, 49100 Angers, France
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Lambot N, Lebrun P, Cirelli N, Vanbellinghen AM, Delogne-Desnoeck J, Graff G, Meuris S. Colloidal effect of albumin on the placental lactogen and chorionic gonadotrophin releases from human term placental explants. Biochem Biophys Res Commun 2004; 315:342-8. [PMID: 14766213 DOI: 10.1016/j.bbrc.2004.01.062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2004] [Indexed: 11/17/2022]
Abstract
Albumin has been reported to stimulate the release of placental lactogen and chorionic gonadotrophin from human term placental explants within physiological concentrations. This study aimed at characterizing further its effect on the placental hormonal secretion. The placental lactogen and chorionic gonadotrophin secretory response of incubated explants to 5% albumin was reproduced by colloidal agents, i.e., dextran (4.5%) and polygelin (4%), indicating that a rise in colloidal osmotic pressure can elicit hormonal release from the syncytiotrophoblast. Their secretory effects were not modified by the absence of extracellular calcium or the presence of verapamil in the medium. The three agents also provoked a marked increase in (45)calcium outflow from preloaded and perifused explants that persisted in absence of extracellular calcium. These data indicate that the triggering effect of albumin on placental lactogen and chorionic gonadotrophin release can be partly reproduced by colloidal agents and is independent of extracellular calcium.
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Affiliation(s)
- N Lambot
- Laboratory of Experimental Hormonology, Université Libre de Bruxelles, Brussels 1070, Belgium.
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Governa M, Valentino M, Amati M, Visonà I, Botta G, Marcer G, Gemignani C. Biological effects of contaminated silicon carbide particles from a workstation in a plant producing abrasives. Toxicol In Vitro 1997; 11:201-7. [DOI: 10.1016/s0887-2333(97)00018-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/1997] [Indexed: 11/28/2022]
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Svennevig JL, Tølløfsrud S, Kongsgaard U, Noddeland H, Mohr B, Ozer M, Mollnes TE. Complement activation during and after open-heart surgery is only marginally affected by the choice of fluid for volume replacement. Perfusion 1996; 11:326-32. [PMID: 8884861 DOI: 10.1177/026765919601100405] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Forty patients undergoing CPB for coronary artery surgery, using a standardized technical setting, were randomized to receive either Ringer's acetate, dextran 70 (Macrodex), polygeline (Haemaccel) or albumin 4% for volume replacement during and after surgery. The choice of fluid did not affect early complement activation (C3 activation products). Higher values of the terminal complement complex (TCC) were found only at the end of the operation in patients receiving polygeline. There were no differences between any two of the four groups during the postoperative course. The use of blood transfusion or autotransfusion and the degree of haemodilution and hypothermia did not affect complement activation. We conclude that complement activation in association with open-heart surgery is only marginally affected by the choice of fluid for volume replacement.
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Affiliation(s)
- J L Svennevig
- Department of Surgery A, Rikshospitalet, University of Oslo, Norway
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Hornick P, George A. Blood contact activation: pathophysiological effects and therapeutic approaches. Perfusion 1996; 11:3-19. [PMID: 8904322 DOI: 10.1177/026765919601100102] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- P Hornick
- Departments of Cardiothoracic Surgery and Immunology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
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Blain JF, Maghni K, Sirois P. Activation of blood complement in guinea pigs receiving an intravenous injection of Sephadex beads. Inflamm Res 1995; 44 Suppl 2:S158-9. [PMID: 8548376 DOI: 10.1007/bf01778310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- J F Blain
- Department of Pharmacology, Faculty of Medicine, University of Sherbrooke, Canada
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